Composite connection busbar

Abstract

The utility model relates to the technical field of electrical elements, and discloses a composite connection busbar, which comprises a first busbar and a second busbar, and further comprises first through holes arranged at two ends of the first busbar, second through holes arranged at two ends of the second busbar, the second busbar is fixed with the surface of the first busbar in a crimping mode, and a plurality of second through holes arranged at two ends of the second busbar. The shell is arranged above the second busbar, fixing holes are formed in the surfaces of the second busbar and the shell, and the fixing holes in the second busbar and the shell are communicated; the connecting mechanism is arranged in the fixing hole; according to the utility model, the first busbar and the second busbar are formed by stamping copper pieces, and the first busbar, the second busbar and the plurality of connecting mechanisms are fixed together by adopting an integral die opening and pressing mode, so that the laminated copper bar not only is accurate in matching and compact in structure, but also is easy to integrally assemble due to the modularized design.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical components, in particular to a composite connection busbar. Background Art

[0002] With the development of new energy vehicles, higher requirements are placed on electrical connectors in vehicles. In addition to meeting the overcurrent capacity, they also need to develop towards a simple structure and low cost. The busbar is a high-current conductive product. The busbar has the advantages of low resistivity and large bendability, which can meet the demand for electrical connectors in new energy vehicles. The composite busbar adopts a composite structure of conductive materials and insulating materials. The conductor layer of the composite busbar uses metals with excellent conductivity such as pure copper, brass and aluminum alloy, and the insulating layer uses materials with high dielectric constant and breakdown voltage such as epoxy, polyester and aramid.

[0003] The composite busbar on the market at present is a two-layer (or three-layer) busbar, which is fixed by glue injection or bonding. This not only has a high manufacturing cost, but also a long processing cycle, and its internal defects are difficult to detect and replace. Another type is to directly screw two (or three-layer) busbars together by bolts, and after multiple layers are stacked, there will be different specifications for the length of the nuts, which is inconvenient to use. Utility Model Content

[0004] The purpose of the utility model is to provide a composite connecting busbar to solve the problems existing in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a composite connection busbar, comprising a first busbar and a second busbar, and further comprising:

[0006] A first through hole is provided at both ends of the first busbar, a second through hole is provided at both ends of the second busbar, and the second busbar is fixed to the surface of the first busbar by crimping;

[0007] A shell is arranged above the second busbar, the surfaces of the second busbar and the shell are both provided with fixing holes, and the fixing holes at the second busbar and the shell are connected;

[0008] A connecting mechanism is arranged inside the fixing hole.

[0009] Preferably, the connecting mechanism includes a first connecting member, a connecting sleeve and a second connecting member, the first connecting member is fixed by clamping with the second connecting member through the connecting sleeve, the first connecting member is located in a fixing hole inside the shell, and the second connecting member is located in a fixing hole inside the second busbar.

[0010] Preferably, the top of the first connecting member fits with the top of the inside of the fixing hole at the outer shell, and the bottom of the second connecting member fits with the bottom surface of the inside of the fixing hole at the second busbar.

[0011] Preferably, two ends of the first busbar are arranged in opposite directions.

[0012] Preferably, the front and rear sides of both sides of the top of the second busbar are connected with movable grooves, and the interior of the movable groove is connected with limiting grooves, and the front and rear sides of both sides of the bottom of the shell are fixedly connected with limiting blocks, and the limiting blocks are used in conjunction with the movable grooves and the interior of the limiting grooves.

[0013] Preferably, the size of the limiting block is matched with the size of the movable slot and the limiting slot.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] The first busbar and the second busbar in the utility model are both formed by stamping copper parts, and the first busbar, the second busbar and a plurality of connecting mechanisms are fixed together by integral mold opening and crimping, so that the laminated copper busbars are not only accurately matched but also compact in structure, and are also easy to assemble as a whole due to the modular design. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure in the present utility model when viewed from above;

[0018] Figure 3 It is a partial top view structural schematic diagram of the utility model;

[0019] Figure 4 It is a partial bottom view structural schematic diagram of the present utility model.

[0020] In the figure: 1. first busbar; 2. second busbar; 3. connecting mechanism; 31. first connecting member; 32. connecting sleeve; 33. second connecting member; 4. outer shell; 5. fixing hole; 6. first through hole; 7. second through hole; 8. limiting block; 9. movable groove; 10. limiting groove. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 As shown, a composite connection busbar comprises a first busbar 1 and a second busbar 2, the second busbar 2 is fixed to the surface of the first busbar 1 by crimping, the two ends of the first busbar 1 are arranged in opposite directions, both ends of the first busbar 1 are provided with a first through hole 6, both ends of the second busbar 2 are provided with a second through hole 7, a shell 4 is arranged above the second busbar 2, the surfaces of the second busbar 2 and the shell 4 are provided with a fixing hole 5, the fixing holes 5 at the second busbar 2 and the shell 4 are connected, a connecting mechanism 3 is arranged inside the fixing hole 5, the connecting mechanism 3 comprises a first connecting member 31, a connecting sleeve 32 and a second connecting member 33, the first connecting member 31 is connected through the connecting sleeve The first connecting member 32 is snap-fitted and fixed with the second connecting member 33. The first connecting member 31 is located in the fixing hole 5 inside the outer shell 4, and the second connecting member 33 is located in the fixing hole 5 inside the second busbar 2. This makes it convenient to connect and fix the outer shell 4 and the second busbar 2, and also facilitates subsequent fixing in the motor controller through the connecting mechanism 3. The top of the first connecting member 31 fits with the top of the fixing hole 5 at the outer shell 4, and the bottom of the second connecting member 33 fits with the bottom surface of the fixing hole 5 at the second busbar 2. In this way, after the first connecting member 31 and the second connecting member 33 are snap-fitted and fixed by the connecting sleeve 32, they will not protrude from the inside of the fixing hole 5.

[0023] The front and rear sides of both sides of the top of the second busbar 2 are connected with movable grooves 9, and the interior of the movable grooves 9 is connected with the limiting grooves 10. The front and rear sides of both sides of the bottom of the shell 4 are fixedly connected with limiting blocks 8. The limiting blocks 8 are used in conjunction with the movable grooves 9 and the interior of the limiting grooves 10. When the shell 4 is clamped on the top of the second busbar 2, the limiting blocks 8 can be aligned with the movable grooves 9, and then the limiting blocks 8 can be slid into the interior of the limiting grooves 10, so as to facilitate the limiting of the shell 4.

[0024] The size of the limiting block 8 is adapted to the size of the movable groove 9 and the limiting groove 10 , so that after the limiting block 8 passes through the movable groove 9 and enters the interior of the limiting groove 10 , it will not slide at will.

[0025] Working principle: The first busbar 1 and the second busbar 2 are both stamped from copper parts, and then the first busbar 1 and the second busbar 2 are fixed together by integral mold crimping, and then the housing 4 is aligned with the top of the second busbar 2, so that the limit block 8 enters the movable groove 9 and the limit groove 10, and then is fastened by the connecting mechanism 3, and finally fixed in the controller of the motor by the connecting mechanism 3.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A composite connection busbar, comprising a first busbar (1) and a second busbar (2), characterized in that: Also includes: First through holes (6) are provided at both ends of the first busbar (1), second through holes (7) are provided at both ends of the second busbar (2), and the second busbar (2) is fixed to the surface of the first busbar (1) by means of crimping; A housing (4) is arranged above the second busbar (2), the surfaces of the second busbar (2) and the housing (4) are both provided with fixing holes (5), and the fixing holes (5) at the second busbar (2) and the housing (4) are connected; A connecting mechanism (3) is arranged inside the fixing hole (5).

2. A composite connection busbar according to claim 1, characterized in that: The connecting mechanism (3) comprises a first connecting member (31), a connecting sleeve (32) and a second connecting member (33); the first connecting member (31) is fixed by clamping between the connecting sleeve (32) and the second connecting member (33); the first connecting member (31) is located in a fixing hole (5) inside the housing (4); and the second connecting member (33) is located in a fixing hole (5) inside the second busbar (2).

3. A composite connection busbar according to claim 2, characterized in that: The top of the first connecting member (31) fits with the top of the interior of the fixing hole (5) at the housing (4), and the bottom of the second connecting member (33) fits with the bottom surface of the interior of the fixing hole (5) at the second busbar (2).

4. The composite connection busbar according to claim 1, characterized in that: The two ends of the first busbar (1) are arranged in opposite directions.

5. The composite connection busbar according to claim 1, characterized in that: The front and rear sides of both sides of the top of the second busbar (2) are connected to movable grooves (9), and the interior of the movable grooves (9) is connected to limit grooves (10). The front and rear sides of both sides of the bottom of the housing (4) are fixedly connected to limit blocks (8), and the limit blocks (8) are used in conjunction with the movable grooves (9) and the interior of the limit grooves (10).

6. A composite connection busbar according to claim 5, characterized in that: The size of the limiting block (8) is compatible with the size of the movable groove (9) and the limiting groove (10).

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